<template>
  <div class="table">
    <div class="container">
      <div class="handle-box">
        <el-button type="primary" size="mini" @click="delAll">批量删除</el-button>
        <el-input v-model="select_word" size="mini" placeholder="请输入歌手名" class="handle-input"></el-input>
        <el-button type="primary" size="mini" @click="centerDialogVisible = true">添加歌手</el-button>
      </div>
    </div>
    <el-table size="mini" ref="multipleTable" border style="width:100%" height="680px" :data="data" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="40"></el-table-column>
      <el-table-column label="歌手图片" width="110" align="center">
        <template slot-scope="scope">
          <div class="singer-img">
            <img :src="getUrl(scope.row.pic)" style="width:100%"/>
          </div>
          <el-upload :action="uploadUrl(scope.row.id)" :before-upload="beforeAvatorUpload"
                     :on-success="handleAvatorSuccess">
            <el-button size="mini">更新图片</el-button>
          </el-upload>
        </template>
      </el-table-column>
      <el-table-column prop="name" label="歌手" width="120" align="center"></el-table-column>
      <el-table-column label="性别" width="50" align="center">
        <template slot-scope="scope">
          {{changeSex(scope.row.sex)}}
        </template>
      </el-table-column>
      <el-table-column label="生日" width="120" align="center">
        <template slot-scope="scope">
          {{attachBirth(scope.row.birth)}}
        </template>
      </el-table-column>
      <el-table-column prop="location" label="地区" width="100" align="center"></el-table-column>
      <el-table-column label="简介">
        <template slot-scope="scope">
          <p style="height:100px;overflow-x:hidden">{{scope.row.introduction}}</p>
        </template>
      </el-table-column>
      <el-table-column label="歌曲管理" width="110" align="center">
        <template slot-scope="scope">
          <el-button size="mini" @click="songEdit(scope.row.id,scope.row.name)">歌曲管理</el-button>
        </template>
      </el-table-column>
      <el-table-column label="操作" width="150" align="center">
        <template slot-scope="scope">
          <el-button size="mini" @click="handleEdit(scope.row)">编辑</el-button>
          <el-button size="mini" type="danger" @click="handleDelete(scope.row.id)">删除</el-button>
        </template>
      </el-table-column>
    </el-table>
    <div class="pagination">
      <el-pagination
        background
        layout = "total,prev,pager,next"
        :current-page="currentPage"
        :page-size="pageSize"
        :total="tableData.length"
        @current-change="handleCurrentChange"
      >
      </el-pagination>
    </div>

    <el-dialog title="添加歌手" :visible.sync="centerDialogVisible" width="400px" center>
      <el-form :model="registerForm" ref="registerForm" label-width="80px">
        <el-form-item prop="name" label="歌手名" size="mini">
          <el-input v-model="registerForm.name" placeholder="歌手名"></el-input>
        </el-form-item>
        <el-form-item label="首字母" size="mini">
          <el-input v-model="registerForm.firstLetter" ></el-input>
        </el-form-item>
        <el-form-item label="性别" size="mini">
          <el-radio-group v-model="registerForm.sex">
            <el-radio :label="0">女</el-radio>
            <el-radio :label="1">男</el-radio>
            <el-radio :label="2">组合</el-radio>
            <el-radio :label="3">不明</el-radio>
          </el-radio-group>
        </el-form-item>
        <el-form-item prop="birth" label="生日" size="mini">
          <el-date-picker type="date" placeholder="选择日期" v-model="registerForm.birth" style="width:100%"></el-date-picker>
        </el-form-item>
        <el-form-item prop="location" label="地区" size="mini">
          <el-input v-model="registerForm.location" placeholder="地区"></el-input>
        </el-form-item>
        <el-form-item prop="introduction" label="简介" size="mini">
          <el-input v-model="registerForm.introduction" placeholder="简介" type="textarea" ></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer">
                <el-button size="mini" @click="centerDialogVisible = false">取消</el-button>
                <el-button size="mini" @click="addSinger">确定</el-button>
            </span>
    </el-dialog>

    <el-dialog title="修改歌手" :visible.sync="editVisible" width="400px" center>
      <el-form :model="form" ref="form" label-width="80px">
        <el-form-item prop="name" label="歌手名" size="mini">
          <el-input v-model="form.name" placeholder="歌手名"></el-input>
        </el-form-item>
        <el-form-item label="首字母" size="mini">
          <el-input v-model="form.firstLetter" ></el-input>
        </el-form-item>
        <el-form-item label="性别" size="mini">
          <el-radio-group v-model="form.sex">
            <el-radio :label="0">女</el-radio>
            <el-radio :label="1">男</el-radio>
            <el-radio :label="2">组合</el-radio>
            <el-radio :label="3">不明</el-radio>
          </el-radio-group>
        </el-form-item>
        <el-form-item label="生日" size="mini">
          <el-date-picker type="date" placeholder="选择日期" v-model="form.birth" style="width:100%"></el-date-picker>
        </el-form-item>
        <el-form-item prop="location" label="地区" size="mini">
          <el-input v-model="form.location" placeholder="地区"></el-input>
        </el-form-item>
        <el-form-item prop="introduction" label="简介" size="mini">
          <el-input v-model="form.introduction" placeholder="简介" type="textarea"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer">
                <el-button size="mini" @click="editVisible = false">取消</el-button>
                <el-button size="mini" @click="editSave">确定</el-button>
            </span>
    </el-dialog>

    <el-dialog title="删除歌手" :visible.sync="delVisible" width="300px" center>
      <div align="center">删除不可恢复，是否确定删除？</div>
      <span slot="footer">
                <el-button size="mini" @click="delVisible = false">取消</el-button>
                <el-button size="mini" @click="deleteRow">确定</el-button>
            </span>
    </el-dialog>
  </div>
</template>

<script>
import {setSinger, getAllSinger,updateSinger,delSinger} from '../api/index';
import { mixin } from '../mixins/index';
export default {
  mixins: [mixin],
  data(){
    return{
      centerDialogVisible: false, //添加弹窗是否显示
      editVisible: false,         //编辑弹窗是否显示
      delVisible: false,          //删除弹窗是否显示
      registerForm:{      //添加框
        name: '',
        sex: '',
        birth: '',
        location: '',
        introduction: '',
        firstLetter: ''
      },
      form:{      //编辑框
        id: '',
        name: '',
        sex: '',
        birth: '',
        location: '',
        introduction: '',
        firstLetter: ''
      },
      tableData: [],
      tempData: [],
      select_word: '',
      pageSize: 5,    //分页每页大小
      currentPage: 1,  //当前页
      idx: -1,          //当前选择项
      multipleSelection: []   //哪些项已经打勾
    }
  },
  computed:{
    //计算当前搜索结果表里的数据
    data(){
      return this.tableData.slice((this.currentPage - 1) * this.pageSize,this.currentPage * this.pageSize)
    }
  },
  watch:{
    //搜索框里面的内容发生变化的时候，搜索结果table列表的内容跟着它的内容发生变化
    select_word: function(){
      if(this.select_word == ''){
        this.tableData = this.tempData;
      }else{
        this.tableData = [];
        for(let item of this.tempData){
          if(item.name.includes(this.select_word)){
            this.tableData.push(item);
          }
        }
      }
    }
  },
  created(){
    this.getData();
  },
  methods:{
    //获取当前页
    handleCurrentChange(val){
      this.currentPage = val;
    },
    //查询所有歌手
    getData(){
      this.tempData = [];
      this.tableData = [];
      getAllSinger().then(res => {
        this.tempData = res;
        this.tableData = res;
        this.currentPage = 1;
      })

    },
    //添加歌手
    addSinger(){
      let d = this.registerForm.birth;
      let datetime = d.getFullYear()+'-'+(d.getMonth()+1)+'-'+d.getDate();
      let params = new URLSearchParams();
      params.append('name',this.registerForm.name);
      params.append('sex',this.registerForm.sex);
      params.append('pic','/img/singerPic/hhh.jpg');
      params.append('birth',datetime);
      params.append('location',this.registerForm.location);
      params.append('introduction',this.registerForm.introduction);
      params.append('firstLetter',this.registerForm.firstLetter);
      setSinger(params)
        .then(res => {
          if(res.code == 1){
            this.getData();
            this.notify("添加成功","success");
          }else{
            this.notify("添加失败","error");
          }
        })
        .catch(err => {
          console.log(err);
        });
      this.centerDialogVisible = false;
    },
    //弹出编辑页面
    handleEdit(row){
      this.editVisible = true;
      this.form = {
        id: row.id,
        name: row.name,
        sex: row.sex,
        birth: row.birth,
        location: row.location,
        introduction: row.introduction,
        firstLetter: row.firstLetter
      }
    },
    //保存编辑页面修改的数据
    editSave(){
      let d = new Date(this.form.birth);
      let datetime = d.getFullYear()+'-'+(d.getMonth()+1)+'-'+d.getDate();
      let params = new URLSearchParams();
      params.append('id',this.form.id);
      params.append('name',this.form.name);
      params.append('sex',this.form.sex);
      params.append('birth',datetime);
      params.append('location',this.form.location);
      params.append('introduction',this.form.introduction);
      params.append('firstLetter',this.form.firstLetter);

      updateSinger(params)
        .then(res => {
          if(res.code == 1){
            this.getData();
            this.notify("修改成功","success");
          }else{
            this.notify("修改失败","error");
          }
        })
        .catch(err => {
          console.log(err);
        });
      this.editVisible = false;
    },
    //更新图片
    uploadUrl(id){
      return `${this.$store.state.HOST}/singer/updateSingerPic?id=${id}`
    },
    //删除一名歌手
    deleteRow(){
      delSinger(this.idx)
        .then(res => {
          if(res){
            this.getData();
            this.notify("删除成功","success");
          }else{
            this.notify("删除失败","error");
          }
        })
        .catch(err => {
          console.log(err);
        });
      this.delVisible = false;
    },
    //转向歌曲管理页面
    songEdit(id,name){
      this.$router.push({path:`/Song`,query:{id,name}});
    }
  }
}
</script>

<style scoped>
.handle-box{
  margin-bottom: 20px;
}
.singer-img{
  width: 100%;
  height: 80px;
  border-radius: 5px;
  margin-bottom: 5px;
  overflow: hidden;
}
.handle-input{
  width: 300px;
  display: inline-block;
}
.pagination{
  display: flex;
  justify-content: center;
}
.el-textarea__inner {min-height: 218px !important;overflow-y: hidden}

</style>
